Biogeochemistry of acid mine drainage and a method to control acid formation

被引：0

作者：

Kleinmann, R.L.P. ^{[1
]}

Crerar, D.A. ^{[1
]}

Pacelli, R.R. ^{[1
]}

机构：

[1] US Bur. Mines, Pittsburgh Res. Cent., Pittsburgh, Pa., United States

来源：

Mining Engineering | 1981年 / 33卷 / 03期

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D O I：

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学科分类号：

摘要：

A bacterium, Thiobacillus ferroxidans, is of prime importance in the formation of acid drainage from pyritic material. Above pH 4. 5, T. ferrooxidans increases initial acidification; below pH 4. 5, it allows acidification to continue bY oxidizing Fe**2** plus . Below a pH of approximately 2. 5, the activity of Fe**3** plus results in steady-state cycling between oxidation of pyrite by Fe**3** plus and bacterial oxidation of Fe**2** plus . Tests demonstrate that inhibition of T. ferroxidans by controlled release of anionic detergents can inexpensively reduce pyrite oxidation and acid formation.

引用

页码：300 / 312

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